technical expertise

High quality boring(hybrid method)
 The hybrid boring method(HTX86) is powered by rotary type’s hydraulic pressure(oil feed) for a excavation work. The tip of drill consist of diamond bit and special double core tube(load elastic tube),and the slime treatment using bubble solution from the compressed air and surfactant polymer. The method can smapling smothly using less water and no damage to the core.
 The method belonging to the air bubble boring. But it's different from the other conventional types, enable coring under the groundwater and artesian groundwater.
Operation performance
 Japan:224 investigation spots , total digging length:24,652m
 overseas:Laos, 1 investigation spot, digging length:150m

hybrid method overview

head of core tube

working conditions
comparison core case
hybrid method normal method